Sampler for granular material.



H. D. BONNELL SAMPLER FOR GRANULAB MATERIAL.

APPLI OATION FILED NOV. 6, 1907 902,049.

Patented 0011.211908.

v atto'cuup HAROLD D. BONNELL, OF NORFOLK, VIRGINIA.

SAMPLER FOR GRANULAR MATERIAL.

Specification of Letters Patent.

Application filed November 6, 1907.

Patented Oct. 27, 1908.

Serial No. 401,020.

To all whom it may concern:

Be it known that I, HAROLD D. BONNELL, a citizen of the United States,residing at Norfolk, Norfolk county, State of Virginia, have inventedcertain new and useful Improvements in Samplers for Granular Material,of which the following is a specification.

My invention relates to a device for obtaining a sample from theinterior of a large body of granular material without moving ormaterially disturbing the main body. Its objects are to simplify theconstruction of such devices and produce one which will be easilyoperated, easily taken apart for urposes of cleaning, and one which canbe led and emptied without shaking the device or removing its parts.

In the accompanying drawings: Figure 1 is a side view of the device withthe receptacle for the material open; Fig. 2 is a longitudinal sectionwith the receptacle closed; Fig. 3 is a cross section on the line 33 ofFig. 1; Fig. 4 is a cross section on the line 44 of Fig. 2; Fig. 5 is across section on the line 5-5 of Fig. 2; and Fig. 6 is aplan view of thedevice partly broken away.

My device embodies an outer tube 1, one side of which is cutawaythroughout most of its length, constituting a longitudinal slot 2. Apiercing point 8 is attached to one end of this tube by means of a crosspin 4, one end of which point is fitted into an inner tube at 8, Fig. 2,but not fastened, so constituting a closure for the end of the innertube flush with the end of slot 2. The other end of the tube is providedwith the circumferential slot 5 which extends about half way around thetube. A tube 6 closely fits the interior of the tube 1 and is rotatablymounted therein. This tube is provided with a longitudinal slot 7 whichcorresponds in length and. shape to the slot 2. A suitable handle 10 hasa cylindrical projection 11 fitting within the other end of tube 6 andconstituting a closure for that end flush with the end of the slot 7.This handle may be of any suitable length or design to enable the deviceto be inserted to the proper depth in the material, and it is rigidlyfastened to the tube 6 by the pin 12. This handle portion is providedwithin the end of the tube 6 with a recess 13 in which is placed a pin14 having a head 15 against which the spring 16 bears. The shank of thispin 14 passes through a hole in the tube 6 and projects into the slot 5in the tube 1. It therefore normally locks the two tubes together andconstitutes with the slot a stop for the relative rotation of the twotubes. By reason of its spring support however it may be depressed belowthe surface of tube 1 so that tube 6 may be drawn lengthwise from tube 1for the purpose of cleaning the parts. The outer tube is beveled at 9 tomake a smooth joint when the tubes are closed.

In operation the device with the parts in the position shown in Figs. 2and 4 is inv I serted in a body of grain or other granular material, bysimply pushing the point 3 into it to the proper depth, and then thehandle 10 is given a turn of about 180 which brings the slots in the twotubes in register and permits the material to enter the tube. The handleis then rotated to its original position and the device is withdrawnfrom the material, bringing a sample inside of the two tubes. By makingthe registering slots in the two tubes correspond and by providing theclosures for the inner tube flush with the ends of the slots thematerial can be easily and quickly discharged by simply inverting thedevice, since there are no corners or pockets in which the parts of thematerial can be held.

Having thus described my invention, What I claim and desire to secure byLetters Patent is:

1. In a sampler for granular material, the combination with a tubeprovided with a longitudinal slot and with a circumferential slotextending part way around it, of a second tube rotatively mounted in thefirst tube provided with a longitudinal slot, a spring pressed pinmounted in said second tube and adapted to project into thecircumferential slot of the first tube, and an extension of the secondtube constituting an operating handle.

2. In a sampler for granular material, the combination with a tubeprovided with a longitudinal slot extending almost its full length andwith a circumferential slot extending part way around it near one end,of a second tube rotatively mounted in the first tube rovided with alongitudinal slot correspondmg to that in the first tube, closures forthe ends of the said second tube flush with the In testimony whereof Iaffix my signature ends of {he slat, and a spiking pressed (pin beinpresence of two Witnesses. yond t e en closure 0 the secon tube adaptedto normally enter the circumferen- HAROLD BONNELL' 5 tial slot of thefirst tube and adapted to be Witnesses:

depressed below the surface to permit sepa- W. H. AYRES, ration of thetubes. W. H. GARY.

